... >Hi-accuracy:0.2%,0.5%,1.0% 2>LCD display,output:pulse,4-20mADC 3>Explode-proof:Ex d11 BT4 ... .2%,0.5%,1% optional.2.Wearable Tungsten carbonized shaft and bearing,be the same with medium of sully.3.Erode ... water,ammonia,acetometer,etc4.Bi-direction Pulse,4~20mADC,total and rate display in the field.5.Power supply 5~24VDC.6 ...